{"id":4094,"date":"2024-10-05T17:00:00","date_gmt":"2024-10-05T08:00:00","guid":{"rendered":"https:\/\/testhagisolcojp.gptw.net\/techblog\/?p=4094"},"modified":"2024-10-03T15:23:59","modified_gmt":"2024-10-03T06:23:59","slug":"post-4094","status":"publish","type":"post","link":"https:\/\/testhagisolcojp.gptw.net\/techblog\/?p=4094","title":{"rendered":"SSD\u306e\u4ee3\u66ff\u51e6\u7406"},"content":{"rendered":"\n<figure class=\"wp-block-image size-large is-style-default\"><img decoding=\"async\" src=\"https:\/\/testhagisolcojp.gptw.net\/techblog\/wp-content\/uploads\/2024\/08\/AdobeStock_722946446-1024x683.jpeg\" alt=\"\" class=\"wp-image-4283\"\/><\/figure>\n\n\n\n<h2 id=\"outline__1\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u3053\u306e\u8a18\u4e8b\u3067\u7d39\u4ecb\u3057\u3066\u3044\u308b\u88fd\u54c1<\/mark><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/testhagisolcojp.gptw.net\/products\/storage\" target=\"_blank\" rel=\"noreferrer noopener\">\u7523\u696d\u7528\u30b9\u30c8\u30ec\u30fc\u30b8\u88fd\u54c1(NVMe SSD, SATA SSD)<\/a><\/li>\n<\/ul>\n\n\n\n<h2 id=\"outline__2\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u304a\u3053\u3068\u308f\u308a<\/mark><\/h2>\n\n\n\n<p>\u3000\u3053\u306e\u8a18\u4e8b\u306f\u3001<a rel=\"noreferrer noopener\" href=\"https:\/\/qiita.com\/ken-yossy\/items\/8762082d7d2c728bd1c4\" target=\"_blank\">2023\u5e741\u6708\u306bQiita\u306b\u6295\u7a3f\u3057\u305f\u8a18\u4e8b<\/a>\u3092\u52a0\u7b46\u4fee\u6b63\u3057\u305f\u3082\u306e\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u307e\u305f\u3001\u3053\u306e\u8a18\u4e8b\u306e\u30aa\u30ea\u30b8\u30ca\u30eb\u306f\u65e5\u672c\u8a9e\u3067\u66f8\u304b\u308c\u3066\u3044\u307e\u3059\u3002\u8a18\u4e8b\u304c\u65e5\u672c\u8a9e\u4ee5\u5916\u306e\u8a00\u8a9e\u3067\u8868\u793a\u3055\u308c\u3066\u3044\u308b\u5834\u5408\u3001\u305d\u308c\u306f\u6a5f\u68b0\u7ffb\u8a33\u306e\u7d50\u679c\u3067\u3059\u3002\u5f53\u793e\u306f\u6a5f\u68b0\u7ffb\u8a33\u306e\u7cbe\u5ea6\u306b\u8cac\u4efb\u3092\u8ca0\u3044\u307e\u305b\u3093\u3002<\/p>\n\n\n\n<h2 id=\"outline__3\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u306f\u3058\u3081\u306b<\/mark><\/h2>\n\n\n\n<p>\u3000NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u3092\u4f7f\u7528\u3057\u305fSSD\uff08\u4ee5\u964d\u5358\u306bSSD\u3068\u8a18\u8f09\uff09\u3067\u3082\u3001Hard Disk Drive (HDD)\u306b\u304a\u3051\u308b\u300c\u4ee3\u66ff\u51e6\u7406\u300d\u3068\u4f3c\u305f\u51e6\u7406\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u4ee5\u4e0b\u306f\u3001<a rel=\"noreferrer noopener\" href=\"https:\/\/crystalmark.info\/ja\/software\/crystaldiskinfo\/\" target=\"_blank\">CrystalDiskInfo<\/a>\u3092\u7528\u3044\u305f\u30b9\u30c8\u30ec\u30fc\u30b8\u306e\u5065\u5eb7\u72b6\u614b\u76e3\u8996\u306b\u95a2\u3059\u308b\u8a18\u4e8b\u3067\u306eHDD\u306e\u4ee3\u66ff\u51e6\u7406\u306e\u8aac\u660e\u3067\u3059\u3002<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p>\u3000\u300c\u4ee3\u66ff\u51e6\u7406\u6e08\u307f\u306e\u30bb\u30af\u30bf\u6570\u300d\u3068\u3044\u3046\u306e\u306f\u3001\u4f55\u3089\u304b\u306e\u7406\u7531\u3067HDD\u306e\u8aad\u307f\u66f8\u304d\u306b\u554f\u984c\u304c\u3042\u308b\u30bb\u30af\u30bf\uff08\u5834\u6240\uff09\u304c\u898b\u3064\u304b\u3063\u305f\u305f\u3081\u3001\u305d\u3053\u306b\u65b0\u305f\u306a\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u307e\u306a\u3044\u3088\u3046\u306b\u3057\u3064\u3064\u3001\u4ee3\u308f\u308a\u306e\u9818\u57df\u3092\u5272\u308a\u5f53\u3066\u3066\u5bfe\u51e6\u3057\u305f\u6570\u3002\u3044\u308f\u3086\u308b\u4e0d\u826f\u30bb\u30af\u30bf\u304c\u3042\u308b\u8a3c\u62e0\u3060\u304c\u3001\u4ee3\u66ff\u51e6\u7406\u304c\u3067\u304d\u3066\u3044\u308b\u305f\u3081\u3001\u5b9f\u4f7f\u7528\u4e0a\u306f\u4f55\u3089\u554f\u984c\u306a\u3044\u3088\u3046\u306b\u898b\u3048\u308b\u3002<\/p>\n\n\n\n<p><em>\u300c<a href=\"https:\/\/forest.watch.impress.co.jp\/docs\/serial\/sspcgame\/1458173.html\" rel=\"noreferrer noopener\" target=\"_blank\">\u30b2\u30fc\u30de\u30fc\u3082\u5e38\u99d0\u63a8\u5968\uff01 HDD\u3084SSD\u306e\u7570\u5e38\u3092\u300cCrystalDiskInfo\u300d\u3067\u691c\u77e5<\/a>\u300d\u3088\u308a\u5f15\u7528<\/em><\/p>\n<\/blockquote>\n\n\n\n<p>\u3000\u3053\u306e\u8aac\u660e\u306fHDD\u5411\u3051\u3067\u3059\u304c\u3001SSD\u306b\u3082\u307b\u307c\u3053\u306e\u307e\u307e\u9069\u7528\u3067\u304d\u307e\u3059\u3002\u300c\u5b9f\u4f7f\u7528\u4e0a\u306f\u4f55\u3089\u554f\u984c\u306a\u3044\u3088\u3046\u306b\u898b\u3048\u308b\u3082\u306e\u306e\u5b9f\u969b\u306b\u306f\u6545\u969c\u304c\u8fd1\u3065\u3044\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u300d\u3053\u3068\u3082HDD\u3068\u540c\u3058\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001SSD\u306b\u304a\u3051\u308b\u4ee3\u66ff\u51e6\u7406\u306e\u4ed5\u7d44\u307f\u3068\u3001\u4ee3\u66ff\u51e6\u7406\u306e\u767a\u52d5\u3092\u691c\u51fa\u3059\u308b\u65b9\u6cd5\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u306a\u304a\u3001\u3053\u306e\u8a18\u4e8b\u3067\u306fHDD\u3068\u3057\u3066Conventional Magnetic Recording (CMR) HDD\u3092\u53c2\u7167\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__4\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u307e\u3068\u3081<\/mark><\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>SSD\u306e\u300c\u4ee3\u66ff\u51e6\u7406\u300d\u306e\u3072\u3068\u3064\u306f\u300c\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u767a\u751f\u6642\u306b\u4ee3\u66ff\u9818\u57df\u304b\u3089\u30d6\u30ed\u30c3\u30af\u3092\u4f9b\u7d66\u3059\u308b\u3053\u3068\u300d<\/li>\n\n\n\n<li>SSD\u3067\u4ee3\u66ff\u51e6\u7406\u304c\u767a\u751f\u3059\u308b\u3068\u3001S.M.A.R.T.\u5c5e\u6027\u306e\u5909\u5316\u3084\u6027\u80fd\u306e\u4e00\u6642\u7684\u4f4e\u4e0b\u304c\u8d77\u3053\u308a\u5f97\u308b<\/li>\n\n\n\n<li>\u4e0a\u8a18\u304b\u3089\u4ee3\u66ff\u51e6\u7406\u306e\u767a\u751f\u3092\u691c\u51fa\u3057\u3066\u65e9\u671f\u306b\u5bfe\u7b56\u3059\u308b\u3053\u3068\u304c\u5927\u4e8b<\/li>\n<\/ul>\n\n\n\n<h2 id=\"outline__5\" class=\"wp-block-heading\"><strong><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u6e96\u5099\uff1aHDD\u3068SSD\u306e\u8a18\u9332\u4f4d\u7f6e\u7ba1\u7406\u306e\u9055\u3044<\/mark><\/strong><\/h2>\n\n\n\n<p>\u3000\u4ee3\u66ff\u51e6\u7406\u306e\u8aac\u660e\u306b\u5165\u308b\u524d\u306b\u3001HDD\u3068\u6700\u8fd1\u306eSSD\u306e\u30c7\u30fc\u30bf\u7ba1\u7406\u30a2\u30eb\u30b4\u30ea\u30ba\u30e0\u306e\u9055\u3044\u3092\u8aac\u660e\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u305d\u308c\u306f\u3001\u30db\u30b9\u30c8\u304c\u6307\u5b9a\u3059\u308bLogical Block Address (LBA)\u3068\u30c9\u30e9\u30a4\u30d6\u5185\u3067\u306e\u30c7\u30fc\u30bf\u8a18\u9332\u4f4d\u7f6e\u306e\u95a2\u4fc2\u304cHDD\u306f\u56fa\u5b9a\u3067SSD\u306f\u53ef\u5909\u3067\u3042\u308b\u3053\u3068\u3001\u3067\u3059\u3002\u3053\u308c\u306f\u300cHDD\u306f\u4e0a\u66f8\u304d\u304c\u3067\u304d\u308b\u304c\u3001NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306f\u4e0a\u66f8\u304d\u3067\u304d\u306a\u3044\u300d\u3053\u3068\u306b\u8d77\u56e0\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000HDD\u306e\u5834\u5408\u3001\u5178\u578b\u7684\u306b\u306f\u56f31\u306e\u3088\u3046\u306bLBA\u3068\u4e00\u5bfe\u4e00\u3067\u5bfe\u5fdc\u3059\u308b\u30bb\u30af\u30bf\u306b\u30c7\u30fc\u30bf\u3092\u8a18\u9332\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" src=\"https:\/\/testhagisolcojp.gptw.net\/techblog\/wp-content\/uploads\/2024\/07\/hdd-logical-and-physical-mapping-en.png\" alt=\"\" class=\"wp-image-4104\"\/><figcaption class=\"wp-element-caption\"><em>\u56f31\uff1aHDD\u306b\u304a\u3051\u308b\u5178\u578b\u7684\u306aLBA\u3068\u30c7\u30fc\u30bf\u8a18\u9332\u4f4d\u7f6e\u306e\u95a2\u4fc2<\/em><\/figcaption><\/figure>\n\n\n\n<p>\u3000\u56f31\u306b\u793a\u3057\u305f\u9806\u5e8f\u3067\u30c9\u30e9\u30a4\u30d6\u304c\u30db\u30b9\u30c8\u304b\u3089\u30b3\u30de\u30f3\u30c9\u3092\u53d7\u9818\u3059\u308b\u3068\u3001LBA = 1\u3078\u306e\u30b3\u30de\u30f3\u30c9\u306f\u5168\u3066\u30bb\u30af\u30bf1\u306b\u3001LBA = 2\u3078\u306e\u30b3\u30de\u30f3\u30c9\u306f\u5168\u3066\u30bb\u30af\u30bf2\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002\u56f31\u306e6\u30b3\u30de\u30f3\u30c9\u3092\u51e6\u7406\u3057\u305f\u5f8c\u306e\u72b6\u614b\u306f\u540c\u56f3\u4e2d\u306e\u300c\u30c7\u30a3\u30b9\u30af\u306e\u72b6\u614b\u300d\u306e\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u4e00\u65b9SSD\u3067\u306f\u3001\u5178\u578b\u7684\u306b\u306f\u56f32\u306e\u3088\u3046\u306b\u53d7\u9818\u3057\u305f\u30b3\u30de\u30f3\u30c9\u306eLBA\u306b\u95a2\u4fc2\u306a\u304f\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3093\u3067\u7ba1\u7406\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" src=\"https:\/\/testhagisolcojp.gptw.net\/techblog\/wp-content\/uploads\/2024\/07\/ssd-logical-and-physical-mapping-en.png\" alt=\"\" class=\"wp-image-4109\"\/><figcaption class=\"wp-element-caption\"><em>\u56f32\uff1aSSD\u306b\u304a\u3051\u308b\u5178\u578b\u7684\u306aLBA\u3068\u30c7\u30fc\u30bf\u8a18\u9332\u4f4d\u7f6e\u306e\u95a2\u4fc2<\/em><\/figcaption><\/figure>\n\n\n\n<p>\u3000\u306a\u304a\u3001\u56f32\u3067\u306f1\u30da\u30fc\u30b8\u306b1\u30bb\u30af\u30bf\u306e\u30c7\u30fc\u30bf\u306e\u307f\u8a18\u9332\u3059\u308b\u3088\u3046\u306b\u8a18\u8f09\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u3053\u308c\u306f\u8aac\u660e\u3092\u7c21\u7565\u5316\u3059\u308b\u305f\u3081\u3067\u3042\u308a\u5b9f\u969b\u306b\u306f1\u30da\u30fc\u30b8\u5185\u306b\u8907\u6570\u30bb\u30af\u30bf\u306e\u30c7\u30fc\u30bf\u3092\u8a18\u9332\u53ef\u80fd\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u56f32\u306e\u3088\u3046\u306b\u3001SSD\u3067\u306f\u53e4\u3044\u30c7\u30fc\u30bf\u304c\u6b8b\u308b\u3053\u3068\u304cHDD\u3068\u7570\u306a\u308a\u307e\u3059\u3002SSD\u306b\u53e4\u3044\u30c7\u30fc\u30bf\u304c\u6b8b\u308b\u306e\u306f\u3001\u53e4\u3044\u30c7\u30fc\u30bf\u304c\u8a18\u9332\u3055\u308c\u305f\u30da\u30fc\u30b8\u306b\u5225\u306e\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3080\u306b\u306f\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\u3092\u6d88\u53bb\u3059\u308b\u5fc5\u8981\u304c\u3042\u308b\u3082\u306e\u306e\u3001\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\uff08\u56f32\u306e\u30d6\u30ed\u30c3\u30af0\uff09\u306b\u6700\u65b0\u30c7\u30fc\u30bf\u304c\u8a18\u9332\u3055\u308c\u3066\u3044\u308b\u9650\u308a\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\u3092\u6d88\u53bb\u3067\u304d\u306a\u3044\u305f\u3081\u3067\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__6\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">HDD\u306e\u4ee3\u66ff\u51e6\u7406<\/mark><\/h2>\n\n\n\n<p>\u3000\u524d\u7bc0\u3067\u8aac\u660e\u3057\u305f\u7ba1\u7406\u65b9\u6cd5\u3092\u3082\u3068\u306b\u3059\u308b\u3068\u3001HDD\u3067\u306e\u4ee3\u66ff\u51e6\u7406\uff08\u30a4\u30e1\u30fc\u30b8\uff09\u306f\u56f33\u306e\u3088\u3046\u306b\u8aac\u660e\u3067\u304d\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" src=\"https:\/\/testhagisolcojp.gptw.net\/techblog\/wp-content\/uploads\/2024\/07\/hdd-relocation-en.png\" alt=\"\" class=\"wp-image-4116\"\/><figcaption class=\"wp-element-caption\"><em>\u56f33\uff1aHDD\u306e\u4ee3\u66ff\u51e6\u7406\uff08\u30a4\u30e1\u30fc\u30b8\uff09<\/em><\/figcaption><\/figure>\n\n\n\n<p>\u3000\u8a18\u9332\u4f4d\u7f6e\u3092\u30bb\u30af\u30bf\u5358\u4f4d\u3067\u7ba1\u7406\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u3042\u308b\u30bb\u30af\u30bf\u304c\u300c\u30c7\u30fc\u30bf\u306e\u8a18\u9332\u306b\u9069\u3055\u306a\u3044\u300d\u3068\u5224\u65ad\u3055\u308c\u305f\u5834\u5408\u3001\u305d\u306e\u30bb\u30af\u30bf\u306e\u4ee3\u308f\u308a\u306b\u4ee3\u66ff\u9818\u57df\u304b\u3089\u30bb\u30af\u30bf\u3092\u5272\u308a\u5f53\u3066\u307e\u3059\u3002\u3053\u308c\u304c\u4ee3\u66ff\u51e6\u7406\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u56f33\u3067\u306f\u3001\u30bb\u30af\u30bf1\u304c\u4e0d\u826f\u30bb\u30af\u30bf\u3068\u5224\u65ad\u3055\u308c\u305f\u306e\u3067\u30bb\u30af\u30bf1\u306e\u4ee3\u66ff\u51e6\u7406\u3092\u884c\u3044\u3001\u30bb\u30af\u30bfX\u3092\u5272\u308a\u5f53\u3066\u3066\u3044\u307e\u3059\u3002\u3053\u306e\u4ee3\u66ff\u51e6\u7406\u4ee5\u964d\u3001LBA 1\u306b\u5bfe\u3059\u308b\u30b3\u30de\u30f3\u30c9\u306f\u5168\u3066\u30bb\u30af\u30bfX\u306b\u30a2\u30af\u30bb\u30b9\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3042\u308b\u30bb\u30af\u30bf\u304c\u300c\u30c7\u30fc\u30bf\u306e\u8a18\u9332\u306b\u9069\u3055\u306a\u3044\u300d\u3068\u5224\u65ad\u3059\u308b\u6761\u4ef6\u306f\u30e1\u30fc\u30ab\u30fc\u306b\u3088\u308a\u7570\u306a\u308a\u307e\u3059\u3002\u8907\u6570\u306e\u6761\u4ef6\u304c\u5b58\u5728\u3059\u308b\u3053\u3068\u3082\u3042\u308a\u307e\u3059\u3002Read\u6642\u3060\u3051\u3067\u306a\u304fWrite\u6642\u306b\u5224\u65ad\u3055\u308c\u308b\u3053\u3068\u3082\u3042\u308a\u5f97\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000HDD\u306eS.M.A.R.T.\u5c5e\u6027\u306b\u300c\u4ee3\u66ff\u51e6\u7406\u6e08\u307f\u306e\u30bb\u30af\u30bf\u6570\u300d\u304c\u3042\u308b\u5834\u5408\u3001\u3053\u306e\u5024\u306f\u56f33\u306e\u30bb\u30af\u30bf1\u306e\u3088\u3046\u306b\u5b9f\u969b\u306b\u4ee3\u66ff\u51e6\u7406\u306b\u3088\u308a\u4ee3\u66ff\u9818\u57df\u304c\u5272\u308a\u5f53\u3066\u3089\u308c\u305f\u30bb\u30af\u30bf\u6570\u3092\u793a\u3059\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u4e00\u65b9\u300c\u4ee3\u66ff\u51e6\u7406\u4fdd\u7559\u4e2d\u306e\u30bb\u30af\u30bf\u6570\u300d\u304c\u3042\u308b\u5834\u5408\u3001\u300c\u4ee3\u66ff\u51e6\u7406\u304c\u5fc5\u8981\u3060\u3068\u5224\u65ad\u3055\u308c\u305f\u304c\u5224\u65ad\u4ee5\u964d\u305d\u306e\u30bb\u30af\u30bf\u306b\u5bfe\u5fdc\u3059\u308bLBA\u306b\u30c7\u30fc\u30bf\u304c\u66f8\u304d\u8fbc\u307e\u308c\u3066\u3044\u306a\u3044\u305f\u3081\u4ee3\u66ff\u51e6\u7406\u304c\u5b9f\u884c\u3055\u308c\u3066\u3044\u306a\u3044\u300d\u30bb\u30af\u30bf\u6570\u3092\u793a\u3059\u3068\u8003\u3048\u3089\u308c\u307e\u3059\u3002\u30b3\u30d4\u30fc\u30aa\u30f3\u30e9\u30a4\u30c8\u306b\u3088\u308b\u9045\u5ef6\u51e6\u7406\u306b\u4f3c\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__7\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">SSD\u306e\u4ee3\u66ff\u51e6\u7406<\/mark><\/h2>\n\n\n\n<p>\u3000\u3044\u3088\u3044\u3088SSD\u306e\u4ee3\u66ff\u51e6\u7406\u3067\u3059\u3002SSD\u306b\u304a\u3044\u3066\u3042\u308b\u8a18\u9332\u4f4d\u7f6e\u304c\u300c\u30c7\u30fc\u30bf\u306e\u8a18\u9332\u306b\u9069\u3055\u306a\u3044\u300d\u3068\u5224\u65ad\u3055\u308c\u308b\u3068\u3001\u305d\u306e\u8a18\u9332\u4f4d\u7f6e\u3092\u542b\u3080\u30d6\u30ed\u30c3\u30af\u304c\u3044\u308f\u3086\u308b\u300c\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af(Bad Block)\u300d\u3068\u306a\u308b\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002\u305d\u3057\u3066\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u304c\u767a\u751f\u3059\u308b\u3068\u4ee3\u66ff\u51e6\u7406\u304c\u884c\u308f\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3053\u3053\u3067\u300c\u591a\u3044\u300d\u3068\u66f8\u3044\u305f\u306e\u306f\u57fa\u6e96\u306a\u3069\u304c\u30e1\u30fc\u30ab\u30fc\u306b\u3088\u308a\u7570\u306a\u308b\u304b\u3089\u3067\u3059\u3002\u3042\u308b\u30d6\u30ed\u30c3\u30af\u3092\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u3068\u6271\u3046\u57fa\u6e96\u304cNAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u30e1\u30fc\u30ab\u30fc\u305d\u3057\u3066SSD\u30e1\u30fc\u30ab\u30fc\u306b\u3088\u308a\u7570\u306a\u308b\u306e\u306f\u3001\u3053\u306e\u6761\u4ef6\u304cNAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u3072\u3044\u3066\u306fSSD\u306e\u5bff\u547d\u3084\u4fe1\u983c\u6027\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u305f\u3081\u3067\u3059\u3002\u5b9f\u969b\u3001\u5404\u793e\u5de5\u592b\u3092\u51dd\u3089\u3057\u3066\u3044\u307e\u3059\u3002\u3054\u5229\u7528\u306eSSD\u306e\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u5316\u6761\u4ef6\u3084\u4ee3\u66ff\u51e6\u7406\u767a\u52d5\u6761\u4ef6\u306f\u30e1\u30fc\u30ab\u30fc\u306b\u304a\u554f\u3044\u5408\u308f\u305b\u304f\u3060\u3055\u3044\u3002\u3000<\/p>\n\n\n\n<p>\u3000\u3053\u306e\u8a18\u4e8b\u3067\u306f\u3001\u3042\u308b\u8a18\u9332\u4f4d\u7f6e\u304c\u300c\u30c7\u30fc\u30bf\u306e\u8a18\u9332\u306b\u9069\u3055\u306a\u3044\u300d\u3068\u5224\u65ad\u3055\u308c\u308b\u72b6\u6cc1\u3067\u5834\u5408\u5206\u3051\u3092\u3057\u3066SSD\u306b\u304a\u3051\u308b\u4ee3\u66ff\u51e6\u7406\u3092\u8aac\u660e\u3057\u307e\u3059\u3002\u5834\u5408\u5206\u3051\u306f\u3001Read\u6642\u3001Write (Program)\u6642\u3001Erase\u6642\u306e3\u3064\u3067\u3059\u3002Erase\u306e\u5b58\u5728\u304cSSD\u306e\u7279\u5fb4\u3067\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__7_1\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Read\u6642\u306b\u5224\u65ad\u3057\u305f\u5834\u5408<\/mark><\/h3>\n\n\n\n<p>\u3000\u3042\u308b\u8a18\u9332\u4f4d\u7f6e\u304c\u30c7\u30fc\u30bf\u306e\u8a18\u9332\u306b\u9069\u3055\u306a\u3044\u3068Read\u6642\u306b\u5224\u65ad\u3055\u308c\u308b\u306e\u306f\u3001\u305d\u306e\u8a18\u9332\u4f4d\u7f6e\u304b\u3089\u30c7\u30fc\u30bf\u3092Read\u3057\u305f\u6642\u306b\u591a\u6570\u306e\u30a8\u30e9\u30fc\u30d3\u30c3\u30c8\u3092\u691c\u51fa\u3057\u305f\u5834\u5408\u306a\u3069\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000Read\u6642\u306b\u591a\u6570\u306e\u30a8\u30e9\u30fc\u30d3\u30c3\u30c8\u3092\u691c\u51fa\u3059\u308b\u4e3b\u8981\u56e0\u306b\u306fData Retention\u306e\u60aa\u5316\u3068Read Disturb\u306e\u5f71\u97ff\u304c\u6319\u3052\u3089\u308c\u307e\u3059\u3002Read Disturb\u306e\u5f71\u97ff\u306fErase\u306b\u3088\u308a\u89e3\u6d88\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u305f\u3081\u3001Read Disturb\u306e\u5f71\u97ff\u304c\u539f\u56e0\u3060\u3068\u5224\u65ad\u3055\u308c\u308c\u3070\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\u3092\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u5316\u305b\u305a\u306b\u69d8\u5b50\u3092\u898b\u308b\u65b9\u6cd5\u3082\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000Data Retention\u304c\u539f\u56e0\u3060\u3068\u5224\u65ad\u3055\u308c\u305f\u5834\u5408\u3001\u5b89\u5168\u7b56\u3092\u3068\u308b\u3068\u3001\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\u3092\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u5316\u3057\u307e\u3059\u3002\u300c\u591a\u6570\u306e\u30a8\u30e9\u30fc\u30d3\u30c3\u30c8\u3092\u691c\u51fa\u3057\u305f\u8a18\u9332\u4f4d\u7f6e\uff08\u30da\u30fc\u30b8\uff09\u306e\u307f\u4ee5\u964d\u4f7f\u7528\u3057\u306a\u3044\u300d\u3068\u3044\u3046\u7d30\u304b\u306a\u7ba1\u7406\u3082\u6280\u8853\u7684\u306b\u306f\u53ef\u80fd\u3067\u3059\u304c\u3001\u7d30\u304b\u3044\u7ba1\u7406\u306f\u30b3\u30b9\u30c8\u304c\u9ad8\u3044\u3053\u3068\u3001Data Retention\u306e\u60aa\u5316\u306f\u6d88\u53bb\u56de\u6570\u5897\u52a0\u304c\u4e3b\u8981\u56e0\u3067\u3042\u308a\u6d88\u53bb\u5358\u4f4d\u306f\u30d6\u30ed\u30c3\u30af\u306a\u306e\u3067\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\u306e\u4ed6\u306e\u30da\u30fc\u30b8\u306e\u4fe1\u983c\u6027\u3082\u4f4e\u4e0b\u3057\u3066\u3044\u308b\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3053\u3068\u3001\u306a\u3069\u304b\u3089\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\u3092\u4e38\u3054\u3068\u4f7f\u308f\u306a\u3044\uff08\uff1d\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u5316\u3059\u308b\uff09\u3053\u3068\u304c\u591a\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000Read\u6642\u306b\u3042\u308b\u30d6\u30ed\u30c3\u30af\u306e\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u5316\u3092\u6c7a\u5b9a\u3059\u308b\u3068\u3001\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\u306b\u8a18\u9332\u3055\u308c\u3066\u3044\u308b\u5c11\u306a\u304f\u3068\u3082\u6700\u65b0\u30c7\u30fc\u30bf\u306f\u4ed6\u306e\u30d6\u30ed\u30c3\u30af\u306b\u30b3\u30d4\u30fc\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u56f34\u306f\u3001\u30d6\u30ed\u30c3\u30afA\u306e\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u5316\u306b\u969b\u3057\u3066\u30d6\u30ed\u30c3\u30afB\u3092\u4ee3\u66ff\u30d6\u30ed\u30c3\u30af\u3068\u3057\u3066\u5272\u308a\u5f53\u3066\u3066\u30d6\u30ed\u30c3\u30afA\u306e\u30c7\u30fc\u30bf\u3092\u30c7\u30c3\u30c9\u30b3\u30d4\u30fc\u3057\u3066\u3044\u308b\u4f8b\u3067\u3059\u3002\u3053\u308c\u304cSSD\u306b\u304a\u3051\u308b\u4ee3\u66ff\u51e6\u7406\u306e\u3072\u3068\u3064\u3067\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" src=\"https:\/\/testhagisolcojp.gptw.net\/techblog\/wp-content\/uploads\/2024\/07\/reallocate-at-read-en.png\" alt=\"\" class=\"wp-image-4126\"\/><figcaption class=\"wp-element-caption\"><em>\u56f34\uff1aRead\u6642\u306b\u767a\u751f\u3057\u305f\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u306b\u5bfe\u3059\u308b\u4ee3\u66ff\u51e6\u7406\u306e\u4e00\u4f8b<\/em><\/figcaption><\/figure>\n\n\n\n<p>\u3000\u4ee3\u66ff\u30d6\u30ed\u30c3\u30af\uff08\u56f34\u306e\u30d6\u30ed\u30c3\u30afB\uff09\u306f\u3044\u308f\u3086\u308b\u4ee3\u66ff\u9818\u57df\u3068\u3057\u3066\u78ba\u4fdd\u3055\u308c\u3066\u3044\u305f\u30d6\u30ed\u30c3\u30af\u304b\u3089\u9078\u3070\u308c\u3066\u5272\u308a\u5f53\u3066\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__7_2\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Write\u6642\u306b\u5224\u65ad\u3057\u305f\u5834\u5408<\/mark><\/h3>\n\n\n\n<p>\u3000\u3042\u308b\u8a18\u9332\u4f4d\u7f6e\u304c\u30c7\u30fc\u30bf\u306e\u8a18\u9332\u306b\u9069\u3055\u306a\u3044\u3068Write (Program)\u6642\u306b\u5224\u65ad\u3055\u308c\u308b\u306e\u306f\u3001\u305d\u306e\u8a18\u9332\u4f4d\u7f6e\u3078\u306e\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u306a\u3069\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306f\u4e00\u822c\u7684\u306b\u3001\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u306e\u6210\u5426\u3092\u78ba\u8a8d\u53ef\u80fd\u3067\u3059\u3002SSD\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306fNAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306b\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u3092\u6307\u793a\u3057\u305f\u5f8c\u3001\u305d\u306e\u6210\u5426\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u306e\u78ba\u8a8d\u6642\u306b\u66f8\u304d\u8fbc\u307f\u7d50\u679c\u304c\u300c\u5931\u6557\u300d\u3060\u3068\u5224\u660e\u3057\u305f\u3089\u305d\u306e\u30ea\u30ab\u30d0\u30ea\u51e6\u7406\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u306b\u5931\u6557\u3057\u305f\u30d6\u30ed\u30c3\u30af\u3092\u5373\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u306b\u3059\u308b\u304b\u3069\u3046\u304b\u3082\u3001NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u30e1\u30fc\u30ab\u30fc\u305d\u3057\u3066SSD\u30e1\u30fc\u30ab\u30fc\u306b\u3088\u308a\u7570\u306a\u308a\u307e\u3059\u3002\u3067\u3059\u304c\u3001\u3084\u306f\u308a\u5b89\u5168\u7b56\u3092\u63a1\u308c\u3070\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u306b\u5931\u6557\u3057\u305f\u30d6\u30ed\u30c3\u30af\u306f\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u5316\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u3078\u306e\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u306f\u30da\u30fc\u30b8\u5358\u4f4d\u3067\u3059\u306e\u3067\u3001\u3042\u308b\u30da\u30fc\u30b8\u3078\u306e\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u306b\u5931\u6557\u3057\u305f\u3089\u3001\u66f8\u304d\u8fbc\u3082\u3046\u3068\u3057\u3066\u3044\u305f\u30c7\u30fc\u30bf\u3092\u4ee3\u66ff\u30d6\u30ed\u30c3\u30af\u306b\u66f8\u304d\u8fbc\u3080\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u308c\u306b\u52a0\u3048\u3066\u3001\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\u306e\u4ed6\u306e\u30da\u30fc\u30b8\u306b\u306f\u65e2\u306b\u30c7\u30fc\u30bf\u3092\u66f8\u304d\u8fbc\u3093\u3060\u53ef\u80fd\u6027\u304c\u3042\u308b\u306e\u3067\u3001\u305d\u308c\u3089\u65e2\u306b\u66f8\u304d\u8fbc\u3093\u3060\u30c7\u30fc\u30bf\u306e\u4ee3\u66ff\u51e6\u7406\u3082\u5fc5\u8981\u3067\u3059\u3002\u4f8b\u3048\u3070\u56f35\u306e\u3088\u3046\u306b\u3001\u66f8\u304d\u8fbc\u307f\u306b\u5931\u6557\u3057\u305f\u30c7\u30fc\u30bf\u3068\u3001\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\u306b\u66f8\u304d\u8fbc\u307e\u308c\u3066\u3044\u305f\u30c7\u30fc\u30bf\u3092\u3001\u4ee3\u66ff\u30d6\u30ed\u30c3\u30af\u306b\u30b3\u30d4\u30fc\u3059\u308b\u65b9\u6cd5\u304c\u8003\u3048\u3089\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<figure class=\"wp-block-image size-full is-style-default\"><img decoding=\"async\" src=\"https:\/\/testhagisolcojp.gptw.net\/techblog\/wp-content\/uploads\/2024\/07\/badblock-at-program-en-2.png\" alt=\"\" class=\"wp-image-4139\"\/><figcaption class=\"wp-element-caption\"><em>\u56f35\uff1aWrite (Program)\u6642\u306b\u767a\u751f\u3059\u308b\u4ee3\u66ff\u51e6\u7406\u306e\u4e00\u4f8b<\/em><\/figcaption><\/figure>\n\n\n\n<h3 id=\"outline__7_3\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">Erase\u6642\u306b\u5224\u65ad\u3057\u305f\u5834\u5408<\/mark><\/h3>\n\n\n\n<p>\u3000\u3042\u308b\u8a18\u9332\u4f4d\u7f6e\u304c\u30c7\u30fc\u30bf\u306e\u8a18\u9332\u306b\u9069\u3055\u306a\u3044\u3068Erase\u6642\u306b\u5224\u65ad\u3055\u308c\u308b\u306e\u306f\u3001\u5f53\u8a72\u30d6\u30ed\u30c3\u30af\u306eErase\u51e6\u7406\u306b\u5931\u6557\u3057\u305f\u5834\u5408\u306a\u3069\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u3068\u540c\u69d8\u3001NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306f\u4e00\u822c\u7684\u306bErase\u51e6\u7406\u306e\u6210\u5426\u3082\u78ba\u8a8d\u53ef\u80fd\u3067\u3059\u3002SSD\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u306fNAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u306bErase\u51e6\u7406\u3092\u6307\u793a\u3057\u305f\u5f8c\u3001\u305d\u306e\u6210\u5426\u3092\u78ba\u8a8d\u3057\u307e\u3059\u3002\u3053\u306e\u78ba\u8a8d\u6642\u306bErase\u7d50\u679c\u304c\u300c\u5931\u6557\u300d\u3060\u3068\u5224\u660e\u3057\u305f\u3089\u305d\u306e\u30ea\u30ab\u30d0\u30ea\u51e6\u7406\u3092\u884c\u3044\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000Erase\u51e6\u7406\u306b\u5931\u6557\u3057\u305f\u30d6\u30ed\u30c3\u30af\u3092\u5373\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u306b\u3059\u308b\u304b\u3069\u3046\u304b\u3082\u3001NAND\u30d5\u30e9\u30c3\u30b7\u30e5\u30e1\u30e2\u30ea\u30e1\u30fc\u30ab\u30fc\u305d\u3057\u3066SSD\u30e1\u30fc\u30ab\u30fc\u306b\u3088\u308a\u7570\u306a\u308a\u307e\u3059\u3002\u3067\u3059\u304c\u3001\u3084\u306f\u308a\u5b89\u5168\u7b56\u3092\u63a1\u308c\u3070Erase\u51e6\u7406\u306b\u5931\u6557\u3057\u305f\u30d6\u30ed\u30c3\u30af\u306f\u30d0\u30c3\u30c9\u30d6\u30ed\u30c3\u30af\u5316\u3057\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u305f\u3060Erase\u51e6\u7406\u306f\u30c7\u30fc\u30bf\u66f8\u304d\u8fbc\u307f\u306e\u6e96\u5099\u3067\u3059\u306e\u3067\u3001Erase\u51e6\u7406\u306b\u5931\u6557\u3057\u305f\u30d6\u30ed\u30c3\u30af\u306b\u306f\u6700\u65b0\u30c7\u30fc\u30bf\u306f\u3042\u308a\u307e\u305b\u3093\u3002\u3067\u3059\u306e\u3067\u3001Read\u6642\u3084Write\u6642\u3068\u7570\u306a\u308a\u30c7\u30fc\u30bf\u306e\u4ee3\u66ff\uff08\u9000\u907f\uff09\u51e6\u7406\u306f\u4e0d\u8981\u3067\u3059\u3002Erase\u5931\u6557\u6642\u306e\u4ee3\u66ff\u51e6\u7406\u306f\u3001\u4ee3\u66ff\u9818\u57df\u304b\u3089\u4ee3\u308f\u308a\u306e\u30d6\u30ed\u30c3\u30af\u3092\u7528\u610f\u3057\u3066Erase\u3059\u308b\u3001\u3068\u3044\u3046\u51e6\u7406\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<h3 id=\"outline__7_4\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color has-vivid-cyan-blue-color\">\u4ee3\u66ff\u51e6\u7406\u306b\u3088\u308b\u5f71\u97ff<\/mark><\/h3>\n\n\n\n<p>\u3000\u4ee5\u4e0a\u306e\u3068\u304a\u308a\u3001SSD\u306e\u4ee3\u66ff\u51e6\u7406\u3067\u306f\u767a\u52d5\u8981\u56e0\u306b\u304b\u304b\u308f\u3089\u305a\u4ee3\u66ff\u9818\u57df\u304b\u3089\u4ee3\u66ff\u30d6\u30ed\u30c3\u30af\u3092\u4f9b\u7d66\u3057\u307e\u3059\u3002\u3053\u306e\u3053\u3068\u306fS.M.A.R.T.\u5c5e\u6027\u306a\u3069\u306b\u53cd\u6620\u3055\u308c\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000SATA SSD\u3067\u3042\u308c\u3070\u5192\u982d\u3067\u793a\u3057\u305f\u300c\u4ee3\u66ff\u51e6\u7406\u6e08\u307f\u30bb\u30af\u30bf\u6570\u300d\u304c\u5897\u3048\u308b\u306f\u305a\u3067\u3059\uff08\u30b5\u30dd\u30fc\u30c8\u3057\u3066\u3044\u308c\u3070\uff09\u3002NVMe SSD\u3067\u3042\u308c\u3070\u3001\u4f59\u5270\u9818\u57df\u7387(Available Spare)\u3001\u4f7f\u7528\u7387(Percentage Used)\u3001\u30e1\u30c7\u30a3\u30a2\u30a8\u30e9\u30fc\u6570(Media and Data Integrity Errors)\u3001\u30a8\u30e9\u30fc\u30ed\u30b0\u30a8\u30f3\u30c8\u30ea\u6570(Number of Error Information Log Entries)\u3001\u306a\u3069\u306e\u5c5e\u6027\u306b\u5909\u5316\u306e\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000HDD\u3067\u306f\u3001\u56f33\u306e\u3068\u304a\u308a\u4ee3\u66ff\u51e6\u7406\u304c\u884c\u308f\u308c\u305f\u30bb\u30af\u30bf\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306e\u307f\u4ee5\u5f8c\u6bce\u56de\u4ee3\u66ff\u9818\u57df\u306b\u98db\u3073\u307e\u3059\u306e\u3067\u3001\u5f53\u8a72\u30bb\u30af\u30bf\u3092\u542b\u3080\u9818\u57df\u306e\u30a2\u30af\u30bb\u30b9\u6027\u80fd\u306f\u4f4e\u4e0b\u3057\u305f\u307e\u307e\u3068\u306a\u308a\u307e\u3059\u3002\u4ee3\u66ff\u9818\u57df\u3078\u306e\u30a2\u30af\u30bb\u30b9\u306b\u56de\u8ee2\u5f85\u3061\u304c\u5fc5\u8981\u3067\u3042\u308c\u3070\u6027\u80fd\u4f4e\u4e0b\u5ea6\u5408\u3044\u306f\u9855\u8457\u306b\u306a\u308a\u307e\u3059\u3002\u7279\u306b\u30b9\u30c8\u30ea\u30fc\u30df\u30f3\u30b0\u30c7\u30fc\u30bf\u306e\u8aad\u307f\u66f8\u304d\u306a\u3069\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u6027\u80fd\u306e\u5b89\u5b9a\u6027\u304c\u6c42\u3081\u3089\u308c\u308b\u5834\u5408\u306b\u306f\u6ce8\u610f\u304c\u5fc5\u8981\u3068\u306a\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u4e00\u65b9SSD\u3067\u306f\u3001Read\u6642\u3084Write\u6642\u306b\u4ee3\u66ff\u51e6\u7406\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u30c7\u30fc\u30bf\u306e\u30b3\u30d4\u30fc\u51e6\u7406\u304c\u3001Erase\u6642\u306b\u4ee3\u66ff\u51e6\u7406\u304c\u767a\u751f\u3057\u305f\u5834\u5408\u306f\u518d\u5ea6\u306eErase\u51e6\u7406\u304c\u5fc5\u8981\u3068\u306a\u308a\u3001\u3053\u306e\u7d50\u679c\u4e00\u6642\u7684\u306b\u6027\u80fd\u304c\u843d\u3061\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u305d\u306e\u4ee3\u308f\u308a\u3001HDD\u306e\u3088\u3046\u306b\u300c\u3042\u308b\u30bb\u30af\u30bf\u3060\u3051\u4ee3\u66ff\u9818\u57df\u306b\u30a2\u30af\u30bb\u30b9\u3059\u308b\u300d\u3068\u3044\u3046\u3053\u3068\u306f\u306a\u304f\u3001\u30b7\u30fc\u30b1\u30f3\u30b7\u30e3\u30eb\u30a2\u30af\u30bb\u30b9\u306b\u304a\u3044\u3066\u3082\u6027\u80fd\u52a3\u5316\u306f\uff08\u3082\u3061\u308d\u3093\u30e1\u30fc\u30ab\u30fc\u4f9d\u5b58\u3067\u3059\u304c\uff09\u8efd\u5fae\u3067\u6e08\u3080\u53ef\u80fd\u6027\u304c\u9ad8\u3044\u3067\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u305f\u3060\u3053\u306e\u300c\u4ee3\u66ff\u51e6\u7406\u306b\u3088\u308b\u6027\u80fd\u4f4e\u4e0b\u304c\u4e00\u6642\u7684\u3067\u6e08\u3080\u300d\u3068\u3044\u3046SSD\u306e\u7279\u5fb4\u306f\u3001\u9006\u306b\u300c\u5b9f\u4f7f\u7528\u4e0a\u306f\u4f55\u3089\u554f\u984c\u306a\u3044\u3088\u3046\u306b\u898b\u3048\u3066\u3057\u307e\u3046\u300d\u3053\u3068\u306b\u7e4b\u304c\u308a\u307e\u3059\u3002<\/p>\n\n\n\n<p>\u3000\u3053\u306e\u305f\u3081SSD\u306e\u5229\u7528\u8005\u3068\u3057\u3066\u306f\u3001\u3053\u306e\u300cS.M.A.R.T.\u5c5e\u6027\u5024\u306e\u5909\u5316\u300d\u3084\u300c\u6027\u80fd\u306e\u4e00\u6642\u7684\u306a\u5909\u5316\u300d\u3092\u3068\u3089\u3048\u3066\u4ee3\u66ff\u51e6\u7406\u306e\u767a\u751f\u3092\u65e9\u671f\u306b\u5bdf\u77e5\u3057\u3001\u4f8b\u3048\u3070\u300c\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3092\u3068\u308b\uff08\u983b\u5ea6\u3092\u9ad8\u304f\u3059\u308b\uff09\u300d\u300c\u30d0\u30c3\u30af\u30a2\u30c3\u30d7\u3084\uff08RAID\u306a\u3069\u306e\uff09\u5197\u9577\u5316\u6a5f\u80fd\u3092\u78ba\u8a8d\u3059\u308b\u300d\u300cSSD\u306e\u4ea4\u63db\u3092\u691c\u8a0e\u3059\u308b\u300d\u300c\u4ea4\u63db\u7528SSD\u3092\u624b\u914d\u3059\u308b\u300d\u306a\u3069\u306e\u5bfe\u7b56\u3092\u8b1b\u3058\u308b\u3053\u3068\u304c\u5927\u4e8b\u3067\u3059\u3002<\/p>\n\n\n\n<h2 id=\"outline__8\" class=\"wp-block-heading\"><mark style=\"background-color:rgba(0, 0, 0, 0)\" class=\"has-inline-color 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